Variable . | Head stimulus . | Tail stimulus . | F-ratio . | P-value . |
---|---|---|---|---|
Head angle — start to transition (deg.) | 46.1±10.63 | 75.9±10.9 | 3.7085 | 0.0721 |
Head angle — transition to end (deg.) | 15.2±3.9 | 17.1±4.2 | 0.1450 | 0.7084 |
Head movement (BL) | 0.15±0.017 | 0.22±0.027 | 4.5952 | 0.0478 |
Tail movement (BL) | 0.06±0.009 | 0.35±0.022 | 150.8221 | <0.0001 |
CM movement (BL) | 0.0046±0.0011 | 0.0062±0.0014 | 0.6901 | 0.4184 |
Initial body extension (%) | 81.43±3.24 | 84.29±2.48 | 0.5149 | 0.4834 |
Min. body extension (%) | 66.98±3.12 | 47.71±2.07 | 20.4258 | 0.0003 |
Duration total (s) | 0.195±0.02576 | 0.095±0.01224 | 14.4967 | 0.0015 |
Duration — start to transition (s) | 0.077±0.00804 | 0.050±0.00937 | 8.6786 | 0.0095 |
Duration — transition to end (s) | 0.118±0.02175 | 0.046±0.007 | 11.1637 | 0.0041 |
Head velocity (BL s-1) | 1.001±0.235 | 2.471±0.286 | 18.1784 | 0.0006 |
Tail velocity (BL s-1) | 0.377±0.079 | 3.884±0.286 | 254.9242 | <0.0001 |
CM movement 48 ms post-withdrawal (BL) | 0.0312±0.0162 | 0.14377±0.02983 | 11.1704 | 0.0041 |
Variable . | Head stimulus . | Tail stimulus . | F-ratio . | P-value . |
---|---|---|---|---|
Head angle — start to transition (deg.) | 46.1±10.63 | 75.9±10.9 | 3.7085 | 0.0721 |
Head angle — transition to end (deg.) | 15.2±3.9 | 17.1±4.2 | 0.1450 | 0.7084 |
Head movement (BL) | 0.15±0.017 | 0.22±0.027 | 4.5952 | 0.0478 |
Tail movement (BL) | 0.06±0.009 | 0.35±0.022 | 150.8221 | <0.0001 |
CM movement (BL) | 0.0046±0.0011 | 0.0062±0.0014 | 0.6901 | 0.4184 |
Initial body extension (%) | 81.43±3.24 | 84.29±2.48 | 0.5149 | 0.4834 |
Min. body extension (%) | 66.98±3.12 | 47.71±2.07 | 20.4258 | 0.0003 |
Duration total (s) | 0.195±0.02576 | 0.095±0.01224 | 14.4967 | 0.0015 |
Duration — start to transition (s) | 0.077±0.00804 | 0.050±0.00937 | 8.6786 | 0.0095 |
Duration — transition to end (s) | 0.118±0.02175 | 0.046±0.007 | 11.1637 | 0.0041 |
Head velocity (BL s-1) | 1.001±0.235 | 2.471±0.286 | 18.1784 | 0.0006 |
Tail velocity (BL s-1) | 0.377±0.079 | 3.884±0.286 | 254.9242 | <0.0001 |
CM movement 48 ms post-withdrawal (BL) | 0.0312±0.0162 | 0.14377±0.02983 | 11.1704 | 0.0041 |
Values for kinematic parameters are means ± s.e.m. Sample size is four individuals, three responses to head stimuli and three responses to tail stimuli per fish. P-values in bold are significant after adjustment of table with a sequential Bonferroni correction(Rice, 1989).